<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <meta
      name="viewport"
      content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"
    />

    <title>纯CSS实现漂亮的加载动画</title>
    <link rel="stylesheet" href="index.css" />

    <link rel="icon" type="image/x-icon" href="../../../favicon.ico" />
</head>

  <body>
    <div class="loading">
      <!-- 【--x是自定义属性，在后面样式中会用到】 -->
      <div style="--x: 0"></div>
      <div style="--x: 1"></div>
      <div style="--x: 2"></div>
      <div style="--x: 3"></div>
      <div style="--x: 4"></div>
      <div style="--x: 5"></div>
    </div>
  </body>
</html>
